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Finding the Fourth Proportional to 305,652.90, 458,544.15 and 92,403.30

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Solution

The fourth proportional to 305,652.90, 458,544.15 and 92,403.30 is: 138,624.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,652.90 : 458,544.15 = 92,403.30 : x
  2. Step 2: Convert to fraction form
    305,652.90/458,544.15 = 92,403.30/x
  3. Step 3: Cross multiply
    305,652.90x = 458,544.15 × 92,403.30
  4. Step 4: Simplify right side
    305,652.90x = 42,370,992,655.70
  5. Step 5: Solve for x
    x = 42,370,992,655.70/305,652.90
  6. Step 6: Final answer
    x = 138,624.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.